Results 11 to 20 of about 34,241 (243)

The strong Fatou property of risk measures

open access: yesDependence Modeling, 2018
In this paper, we explore several Fatou-type properties of risk measures. The paper continues to reveal that the strong Fatou property,whichwas introduced in [19], seems to be most suitable to ensure nice dual representations of risk measures.
Chen Shengzhong   +2 more
doaj   +1 more source

Density of Analytic Polynomials in Abstract Hardy Spaces [PDF]

open access: yes, 2017
Let $X$ be a separable Banach function space on the unit circle $\mathbb{T}$ and $H[X]$ be the abstract Hardy space built upon $X$. We show that the set of analytic polynomials is dense in $H[X]$ if the Hardy-Littlewood maximal operator is bounded on the
Karlovich, Alexei Yu.
core   +2 more sources

Optimal Regularity Properties of the Generalized Sobolev Spaces

open access: yesJournal of Function Spaces and Applications, 2013
We prove optimal embeddings of the generalized Sobolev spaces , where is a rearrangement invariant function space, into the generalized Hölder-Zygmund space generated by a function space .
G. E. Karadzhov, Qaisar Mehmood
doaj   +1 more source

Mixed norm spaces and rearrangement invariant estimates [PDF]

open access: yes, 2014
Our main goal in this work is to further improve the mixed norm estimates due to Fournier, and also Algervik and Kolyada, to more general rearrangement invariant (r.i.) spaces.
Clavero, Nadia, Soria, Javier
core   +1 more source

New classes of rearrangement-invariant spaces appearing in extreme cases of weak interpolation

open access: yesJournal of Function Spaces and Applications, 2006
We study weak type interpolation for ultrasymmetric spaces L?,E i.e., having the norm ??(t)f*(t)?E˜, where ?(t) is any quasiconcave function and E˜ is arbitrary rearrangement-invariant space with respect to the measure dt/t. When spaces L?,E are not “too
Evgeniy Pustylnik, Teresa Signes
doaj   +1 more source

Dynamical Rearrangement of Theta Parameter in Presence of Mixed Chern-Simons Term [PDF]

open access: yes, 2008
We study the five-dimensional SU(3)_c x U(1)_C gauge theory on the orbifold S^1/Z_2 with a mixed Chern-Simons term. We particularly pay attention to the realization of the dynamical rearrangement of the theta parameter for SU(3)_c.
Haba, Naoyuki   +2 more
core   +6 more sources

Banach algebra of the Fourier multipliers on weighted Banach function spaces

open access: yesConcrete Operators, 2015
Let MX,w(ℝ) denote the algebra of the Fourier multipliers on a separable weighted Banach function space X(ℝ,w).We prove that if the Cauchy singular integral operator S is bounded on X(ℝ, w), thenMX,w(ℝ) is continuously embedded into L∞(ℝ).
Karlovich Alexei
doaj   +1 more source

RUC systems in rearrangement invariant spaces [PDF]

open access: yesStudia Mathematica, 2002
An RUC (randomly unconditionally converging) system in a Banach space \(X\) is a biorthogonal system \((x_j,x_j^\ast)\) in \(X\times X^\ast\) such that for every \(x\) in the closed linear span of the \(x_n\), the series \(\sum\limits_{j=1}^\infty r_j(t)x_j^\ast(x)x_j\) converges for almost all \(t\in[0,1]\), where \(\{r_n\}_{n=1}^\infty\) denotes the ...
Dodds, P. G.   +2 more
openaire   +2 more sources

About interpolation of subspaces of rearrangement invariant spaces generated by Rademacher system

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
The Rademacher series in rearrangement invariant function spaces “close” to the space L∞ are considered. In terms of interpolation theory of operators, a correspondence between such spaces and spaces of coefficients generated by them is stated.
Sergey V. Astashkin
doaj   +1 more source

Lebesgue's Differentiation Theorems in R.I. Quasi-Banach Spaces and Lorentz Spaces Γp,w

open access: yesJournal of Function Spaces and Applications, 2012
The paper is devoted to investigation of new Lebesgue's type differentiation theorems (LDT) in rearrangement invariant (r.i.) quasi-Banach spaces E and in particular on Lorentz spaces Γp,w={f:∫(f ...
Maciej Ciesielski, Anna Kamińska
doaj   +1 more source

Home - About - Disclaimer - Privacy